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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. | |
2a1d9b7f | 3 | * Copyright (c) 2005 Mellanox Technologies. All rights reserved. |
4885bf64 | 4 | * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. |
1da177e4 LT |
5 | * |
6 | * This software is available to you under a choice of one of two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * provided with the distribution. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
1da177e4 LT |
33 | */ |
34 | ||
2a214182 | 35 | #include <linux/completion.h> |
1da177e4 LT |
36 | #include <linux/pci.h> |
37 | #include <linux/errno.h> | |
e8edc6e0 | 38 | #include <linux/sched.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
1da177e4 | 40 | #include <asm/io.h> |
a4d61e84 | 41 | #include <rdma/ib_mad.h> |
1da177e4 LT |
42 | |
43 | #include "mthca_dev.h" | |
44 | #include "mthca_config_reg.h" | |
45 | #include "mthca_cmd.h" | |
46 | #include "mthca_memfree.h" | |
47 | ||
48 | #define CMD_POLL_TOKEN 0xffff | |
49 | ||
50 | enum { | |
51 | HCR_IN_PARAM_OFFSET = 0x00, | |
52 | HCR_IN_MODIFIER_OFFSET = 0x08, | |
53 | HCR_OUT_PARAM_OFFSET = 0x0c, | |
54 | HCR_TOKEN_OFFSET = 0x14, | |
55 | HCR_STATUS_OFFSET = 0x18, | |
56 | ||
57 | HCR_OPMOD_SHIFT = 12, | |
58 | HCA_E_BIT = 22, | |
59 | HCR_GO_BIT = 23 | |
60 | }; | |
61 | ||
62 | enum { | |
63 | /* initialization and general commands */ | |
64 | CMD_SYS_EN = 0x1, | |
65 | CMD_SYS_DIS = 0x2, | |
66 | CMD_MAP_FA = 0xfff, | |
67 | CMD_UNMAP_FA = 0xffe, | |
68 | CMD_RUN_FW = 0xff6, | |
69 | CMD_MOD_STAT_CFG = 0x34, | |
70 | CMD_QUERY_DEV_LIM = 0x3, | |
71 | CMD_QUERY_FW = 0x4, | |
72 | CMD_ENABLE_LAM = 0xff8, | |
73 | CMD_DISABLE_LAM = 0xff7, | |
74 | CMD_QUERY_DDR = 0x5, | |
75 | CMD_QUERY_ADAPTER = 0x6, | |
76 | CMD_INIT_HCA = 0x7, | |
77 | CMD_CLOSE_HCA = 0x8, | |
78 | CMD_INIT_IB = 0x9, | |
79 | CMD_CLOSE_IB = 0xa, | |
80 | CMD_QUERY_HCA = 0xb, | |
81 | CMD_SET_IB = 0xc, | |
82 | CMD_ACCESS_DDR = 0x2e, | |
83 | CMD_MAP_ICM = 0xffa, | |
84 | CMD_UNMAP_ICM = 0xff9, | |
85 | CMD_MAP_ICM_AUX = 0xffc, | |
86 | CMD_UNMAP_ICM_AUX = 0xffb, | |
87 | CMD_SET_ICM_SIZE = 0xffd, | |
88 | ||
89 | /* TPT commands */ | |
90 | CMD_SW2HW_MPT = 0xd, | |
91 | CMD_QUERY_MPT = 0xe, | |
92 | CMD_HW2SW_MPT = 0xf, | |
93 | CMD_READ_MTT = 0x10, | |
94 | CMD_WRITE_MTT = 0x11, | |
95 | CMD_SYNC_TPT = 0x2f, | |
96 | ||
97 | /* EQ commands */ | |
98 | CMD_MAP_EQ = 0x12, | |
99 | CMD_SW2HW_EQ = 0x13, | |
100 | CMD_HW2SW_EQ = 0x14, | |
101 | CMD_QUERY_EQ = 0x15, | |
102 | ||
103 | /* CQ commands */ | |
104 | CMD_SW2HW_CQ = 0x16, | |
105 | CMD_HW2SW_CQ = 0x17, | |
106 | CMD_QUERY_CQ = 0x18, | |
107 | CMD_RESIZE_CQ = 0x2c, | |
108 | ||
109 | /* SRQ commands */ | |
110 | CMD_SW2HW_SRQ = 0x35, | |
111 | CMD_HW2SW_SRQ = 0x36, | |
112 | CMD_QUERY_SRQ = 0x37, | |
ec34a922 | 113 | CMD_ARM_SRQ = 0x40, |
1da177e4 LT |
114 | |
115 | /* QP/EE commands */ | |
116 | CMD_RST2INIT_QPEE = 0x19, | |
117 | CMD_INIT2RTR_QPEE = 0x1a, | |
118 | CMD_RTR2RTS_QPEE = 0x1b, | |
119 | CMD_RTS2RTS_QPEE = 0x1c, | |
120 | CMD_SQERR2RTS_QPEE = 0x1d, | |
121 | CMD_2ERR_QPEE = 0x1e, | |
122 | CMD_RTS2SQD_QPEE = 0x1f, | |
123 | CMD_SQD2SQD_QPEE = 0x38, | |
124 | CMD_SQD2RTS_QPEE = 0x20, | |
125 | CMD_ERR2RST_QPEE = 0x21, | |
126 | CMD_QUERY_QPEE = 0x22, | |
127 | CMD_INIT2INIT_QPEE = 0x2d, | |
128 | CMD_SUSPEND_QPEE = 0x32, | |
129 | CMD_UNSUSPEND_QPEE = 0x33, | |
130 | /* special QPs and management commands */ | |
131 | CMD_CONF_SPECIAL_QP = 0x23, | |
132 | CMD_MAD_IFC = 0x24, | |
133 | ||
134 | /* multicast commands */ | |
135 | CMD_READ_MGM = 0x25, | |
136 | CMD_WRITE_MGM = 0x26, | |
137 | CMD_MGID_HASH = 0x27, | |
138 | ||
139 | /* miscellaneous commands */ | |
140 | CMD_DIAG_RPRT = 0x30, | |
141 | CMD_NOP = 0x31, | |
142 | ||
143 | /* debug commands */ | |
144 | CMD_QUERY_DEBUG_MSG = 0x2a, | |
145 | CMD_SET_DEBUG_MSG = 0x2b, | |
146 | }; | |
147 | ||
148 | /* | |
149 | * According to Mellanox code, FW may be starved and never complete | |
150 | * commands. So we can't use strict timeouts described in PRM -- we | |
151 | * just arbitrarily select 60 seconds for now. | |
152 | */ | |
153 | #if 0 | |
154 | /* | |
155 | * Round up and add 1 to make sure we get the full wait time (since we | |
156 | * will be starting in the middle of a jiffy) | |
157 | */ | |
158 | enum { | |
159 | CMD_TIME_CLASS_A = (HZ + 999) / 1000 + 1, | |
160 | CMD_TIME_CLASS_B = (HZ + 99) / 100 + 1, | |
8531f1f1 JM |
161 | CMD_TIME_CLASS_C = (HZ + 9) / 10 + 1, |
162 | CMD_TIME_CLASS_D = 60 * HZ | |
1da177e4 LT |
163 | }; |
164 | #else | |
165 | enum { | |
166 | CMD_TIME_CLASS_A = 60 * HZ, | |
167 | CMD_TIME_CLASS_B = 60 * HZ, | |
8531f1f1 JM |
168 | CMD_TIME_CLASS_C = 60 * HZ, |
169 | CMD_TIME_CLASS_D = 60 * HZ | |
1da177e4 LT |
170 | }; |
171 | #endif | |
172 | ||
173 | enum { | |
174 | GO_BIT_TIMEOUT = HZ * 10 | |
175 | }; | |
176 | ||
177 | struct mthca_cmd_context { | |
178 | struct completion done; | |
1da177e4 LT |
179 | int result; |
180 | int next; | |
181 | u64 out_param; | |
182 | u16 token; | |
183 | u8 status; | |
184 | }; | |
185 | ||
1db76c14 | 186 | static int fw_cmd_doorbell = 0; |
14abdffc EC |
187 | module_param(fw_cmd_doorbell, int, 0644); |
188 | MODULE_PARM_DESC(fw_cmd_doorbell, "post FW commands through doorbell page if nonzero " | |
189 | "(and supported by FW)"); | |
190 | ||
1da177e4 LT |
191 | static inline int go_bit(struct mthca_dev *dev) |
192 | { | |
193 | return readl(dev->hcr + HCR_STATUS_OFFSET) & | |
194 | swab32(1 << HCR_GO_BIT); | |
195 | } | |
196 | ||
14abdffc EC |
197 | static void mthca_cmd_post_dbell(struct mthca_dev *dev, |
198 | u64 in_param, | |
199 | u64 out_param, | |
200 | u32 in_modifier, | |
201 | u8 op_modifier, | |
202 | u16 op, | |
203 | u16 token) | |
1da177e4 | 204 | { |
14abdffc EC |
205 | void __iomem *ptr = dev->cmd.dbell_map; |
206 | u16 *offs = dev->cmd.dbell_offsets; | |
1da177e4 | 207 | |
14abdffc EC |
208 | __raw_writel((__force u32) cpu_to_be32(in_param >> 32), ptr + offs[0]); |
209 | wmb(); | |
210 | __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), ptr + offs[1]); | |
211 | wmb(); | |
212 | __raw_writel((__force u32) cpu_to_be32(in_modifier), ptr + offs[2]); | |
213 | wmb(); | |
214 | __raw_writel((__force u32) cpu_to_be32(out_param >> 32), ptr + offs[3]); | |
215 | wmb(); | |
216 | __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), ptr + offs[4]); | |
217 | wmb(); | |
218 | __raw_writel((__force u32) cpu_to_be32(token << 16), ptr + offs[5]); | |
219 | wmb(); | |
220 | __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | | |
221 | (1 << HCA_E_BIT) | | |
222 | (op_modifier << HCR_OPMOD_SHIFT) | | |
b3999393 | 223 | op), ptr + offs[6]); |
14abdffc EC |
224 | wmb(); |
225 | __raw_writel((__force u32) 0, ptr + offs[7]); | |
226 | wmb(); | |
227 | } | |
1da177e4 | 228 | |
14abdffc EC |
229 | static int mthca_cmd_post_hcr(struct mthca_dev *dev, |
230 | u64 in_param, | |
231 | u64 out_param, | |
232 | u32 in_modifier, | |
233 | u8 op_modifier, | |
234 | u16 op, | |
235 | u16 token, | |
236 | int event) | |
237 | { | |
1da177e4 LT |
238 | if (event) { |
239 | unsigned long end = jiffies + GO_BIT_TIMEOUT; | |
240 | ||
241 | while (go_bit(dev) && time_before(jiffies, end)) { | |
242 | set_current_state(TASK_RUNNING); | |
243 | schedule(); | |
244 | } | |
245 | } | |
246 | ||
14abdffc EC |
247 | if (go_bit(dev)) |
248 | return -EAGAIN; | |
1da177e4 LT |
249 | |
250 | /* | |
251 | * We use writel (instead of something like memcpy_toio) | |
252 | * because writes of less than 32 bits to the HCR don't work | |
253 | * (and some architectures such as ia64 implement memcpy_toio | |
254 | * in terms of writeb). | |
255 | */ | |
97f52eb4 SH |
256 | __raw_writel((__force u32) cpu_to_be32(in_param >> 32), dev->hcr + 0 * 4); |
257 | __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), dev->hcr + 1 * 4); | |
258 | __raw_writel((__force u32) cpu_to_be32(in_modifier), dev->hcr + 2 * 4); | |
259 | __raw_writel((__force u32) cpu_to_be32(out_param >> 32), dev->hcr + 3 * 4); | |
260 | __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), dev->hcr + 4 * 4); | |
261 | __raw_writel((__force u32) cpu_to_be32(token << 16), dev->hcr + 5 * 4); | |
1da177e4 LT |
262 | |
263 | /* __raw_writel may not order writes. */ | |
264 | wmb(); | |
265 | ||
97f52eb4 SH |
266 | __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | |
267 | (event ? (1 << HCA_E_BIT) : 0) | | |
268 | (op_modifier << HCR_OPMOD_SHIFT) | | |
269 | op), dev->hcr + 6 * 4); | |
1da177e4 | 270 | |
14abdffc EC |
271 | return 0; |
272 | } | |
273 | ||
274 | static int mthca_cmd_post(struct mthca_dev *dev, | |
275 | u64 in_param, | |
276 | u64 out_param, | |
277 | u32 in_modifier, | |
278 | u8 op_modifier, | |
279 | u16 op, | |
280 | u16 token, | |
281 | int event) | |
282 | { | |
283 | int err = 0; | |
284 | ||
285 | mutex_lock(&dev->cmd.hcr_mutex); | |
286 | ||
287 | if (event && dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS && fw_cmd_doorbell) | |
288 | mthca_cmd_post_dbell(dev, in_param, out_param, in_modifier, | |
289 | op_modifier, op, token); | |
290 | else | |
291 | err = mthca_cmd_post_hcr(dev, in_param, out_param, in_modifier, | |
292 | op_modifier, op, token, event); | |
293 | ||
76d7cc03 RD |
294 | /* |
295 | * Make sure that our HCR writes don't get mixed in with | |
296 | * writes from another CPU starting a FW command. | |
297 | */ | |
298 | mmiowb(); | |
299 | ||
fd9cfdd1 | 300 | mutex_unlock(&dev->cmd.hcr_mutex); |
1da177e4 LT |
301 | return err; |
302 | } | |
303 | ||
cdb73db0 GR |
304 | |
305 | static int mthca_status_to_errno(u8 status) | |
306 | { | |
307 | static const int trans_table[] = { | |
308 | [MTHCA_CMD_STAT_INTERNAL_ERR] = -EIO, | |
309 | [MTHCA_CMD_STAT_BAD_OP] = -EPERM, | |
310 | [MTHCA_CMD_STAT_BAD_PARAM] = -EINVAL, | |
311 | [MTHCA_CMD_STAT_BAD_SYS_STATE] = -ENXIO, | |
312 | [MTHCA_CMD_STAT_BAD_RESOURCE] = -EBADF, | |
313 | [MTHCA_CMD_STAT_RESOURCE_BUSY] = -EBUSY, | |
314 | [MTHCA_CMD_STAT_DDR_MEM_ERR] = -ENOMEM, | |
315 | [MTHCA_CMD_STAT_EXCEED_LIM] = -ENOMEM, | |
316 | [MTHCA_CMD_STAT_BAD_RES_STATE] = -EBADF, | |
317 | [MTHCA_CMD_STAT_BAD_INDEX] = -EBADF, | |
318 | [MTHCA_CMD_STAT_BAD_NVMEM] = -EFAULT, | |
319 | [MTHCA_CMD_STAT_BAD_QPEE_STATE] = -EINVAL, | |
320 | [MTHCA_CMD_STAT_BAD_SEG_PARAM] = -EFAULT, | |
321 | [MTHCA_CMD_STAT_REG_BOUND] = -EBUSY, | |
322 | [MTHCA_CMD_STAT_LAM_NOT_PRE] = -EAGAIN, | |
323 | [MTHCA_CMD_STAT_BAD_PKT] = -EBADMSG, | |
324 | [MTHCA_CMD_STAT_BAD_SIZE] = -ENOMEM, | |
325 | }; | |
326 | ||
327 | if (status >= ARRAY_SIZE(trans_table) || | |
328 | (status != MTHCA_CMD_STAT_OK | |
329 | && trans_table[status] == 0)) | |
330 | return -EINVAL; | |
331 | ||
332 | return trans_table[status]; | |
333 | } | |
334 | ||
335 | ||
1da177e4 LT |
336 | static int mthca_cmd_poll(struct mthca_dev *dev, |
337 | u64 in_param, | |
338 | u64 *out_param, | |
339 | int out_is_imm, | |
340 | u32 in_modifier, | |
341 | u8 op_modifier, | |
342 | u16 op, | |
cdb73db0 | 343 | unsigned long timeout) |
1da177e4 LT |
344 | { |
345 | int err = 0; | |
346 | unsigned long end; | |
cdb73db0 | 347 | u8 status; |
1da177e4 | 348 | |
e3aa31c5 | 349 | down(&dev->cmd.poll_sem); |
1da177e4 LT |
350 | |
351 | err = mthca_cmd_post(dev, in_param, | |
352 | out_param ? *out_param : 0, | |
353 | in_modifier, op_modifier, | |
354 | op, CMD_POLL_TOKEN, 0); | |
355 | if (err) | |
356 | goto out; | |
357 | ||
358 | end = timeout + jiffies; | |
359 | while (go_bit(dev) && time_before(jiffies, end)) { | |
360 | set_current_state(TASK_RUNNING); | |
361 | schedule(); | |
362 | } | |
363 | ||
364 | if (go_bit(dev)) { | |
365 | err = -EBUSY; | |
366 | goto out; | |
367 | } | |
368 | ||
97f52eb4 | 369 | if (out_is_imm) |
2fa5e2eb | 370 | *out_param = |
97f52eb4 SH |
371 | (u64) be32_to_cpu((__force __be32) |
372 | __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET)) << 32 | | |
373 | (u64) be32_to_cpu((__force __be32) | |
374 | __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET + 4)); | |
1da177e4 | 375 | |
cdb73db0 GR |
376 | status = be32_to_cpu((__force __be32) __raw_readl(dev->hcr + HCR_STATUS_OFFSET)) >> 24; |
377 | if (status) { | |
378 | mthca_dbg(dev, "Command %02x completed with status %02x\n", | |
379 | op, status); | |
380 | err = mthca_status_to_errno(status); | |
381 | } | |
1da177e4 LT |
382 | |
383 | out: | |
384 | up(&dev->cmd.poll_sem); | |
385 | return err; | |
386 | } | |
387 | ||
388 | void mthca_cmd_event(struct mthca_dev *dev, | |
389 | u16 token, | |
390 | u8 status, | |
391 | u64 out_param) | |
392 | { | |
393 | struct mthca_cmd_context *context = | |
394 | &dev->cmd.context[token & dev->cmd.token_mask]; | |
395 | ||
396 | /* previously timed out command completing at long last */ | |
397 | if (token != context->token) | |
398 | return; | |
399 | ||
400 | context->result = 0; | |
401 | context->status = status; | |
402 | context->out_param = out_param; | |
403 | ||
1da177e4 LT |
404 | complete(&context->done); |
405 | } | |
406 | ||
1da177e4 LT |
407 | static int mthca_cmd_wait(struct mthca_dev *dev, |
408 | u64 in_param, | |
409 | u64 *out_param, | |
410 | int out_is_imm, | |
411 | u32 in_modifier, | |
412 | u8 op_modifier, | |
413 | u16 op, | |
cdb73db0 | 414 | unsigned long timeout) |
1da177e4 LT |
415 | { |
416 | int err = 0; | |
417 | struct mthca_cmd_context *context; | |
418 | ||
e3aa31c5 | 419 | down(&dev->cmd.event_sem); |
1da177e4 LT |
420 | |
421 | spin_lock(&dev->cmd.context_lock); | |
422 | BUG_ON(dev->cmd.free_head < 0); | |
423 | context = &dev->cmd.context[dev->cmd.free_head]; | |
c1f74958 | 424 | context->token += dev->cmd.token_mask + 1; |
1da177e4 LT |
425 | dev->cmd.free_head = context->next; |
426 | spin_unlock(&dev->cmd.context_lock); | |
427 | ||
428 | init_completion(&context->done); | |
429 | ||
430 | err = mthca_cmd_post(dev, in_param, | |
431 | out_param ? *out_param : 0, | |
432 | in_modifier, op_modifier, | |
433 | op, context->token, 1); | |
434 | if (err) | |
435 | goto out; | |
436 | ||
e9cd5941 RD |
437 | if (!wait_for_completion_timeout(&context->done, timeout)) { |
438 | err = -EBUSY; | |
439 | goto out; | |
440 | } | |
1da177e4 LT |
441 | |
442 | err = context->result; | |
443 | if (err) | |
444 | goto out; | |
445 | ||
cdb73db0 | 446 | if (context->status) { |
1da177e4 | 447 | mthca_dbg(dev, "Command %02x completed with status %02x\n", |
cdb73db0 GR |
448 | op, context->status); |
449 | err = mthca_status_to_errno(context->status); | |
450 | } | |
1da177e4 LT |
451 | |
452 | if (out_is_imm) | |
453 | *out_param = context->out_param; | |
454 | ||
455 | out: | |
456 | spin_lock(&dev->cmd.context_lock); | |
457 | context->next = dev->cmd.free_head; | |
458 | dev->cmd.free_head = context - dev->cmd.context; | |
459 | spin_unlock(&dev->cmd.context_lock); | |
460 | ||
461 | up(&dev->cmd.event_sem); | |
462 | return err; | |
463 | } | |
464 | ||
465 | /* Invoke a command with an output mailbox */ | |
466 | static int mthca_cmd_box(struct mthca_dev *dev, | |
467 | u64 in_param, | |
468 | u64 out_param, | |
469 | u32 in_modifier, | |
470 | u8 op_modifier, | |
471 | u16 op, | |
cdb73db0 | 472 | unsigned long timeout) |
1da177e4 | 473 | { |
14abdffc | 474 | if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS) |
1da177e4 LT |
475 | return mthca_cmd_wait(dev, in_param, &out_param, 0, |
476 | in_modifier, op_modifier, op, | |
cdb73db0 | 477 | timeout); |
1da177e4 LT |
478 | else |
479 | return mthca_cmd_poll(dev, in_param, &out_param, 0, | |
480 | in_modifier, op_modifier, op, | |
cdb73db0 | 481 | timeout); |
1da177e4 LT |
482 | } |
483 | ||
484 | /* Invoke a command with no output parameter */ | |
485 | static int mthca_cmd(struct mthca_dev *dev, | |
486 | u64 in_param, | |
487 | u32 in_modifier, | |
488 | u8 op_modifier, | |
489 | u16 op, | |
cdb73db0 | 490 | unsigned long timeout) |
1da177e4 LT |
491 | { |
492 | return mthca_cmd_box(dev, in_param, 0, in_modifier, | |
cdb73db0 | 493 | op_modifier, op, timeout); |
1da177e4 LT |
494 | } |
495 | ||
496 | /* | |
497 | * Invoke a command with an immediate output parameter (and copy the | |
498 | * output into the caller's out_param pointer after the command | |
499 | * executes). | |
500 | */ | |
501 | static int mthca_cmd_imm(struct mthca_dev *dev, | |
502 | u64 in_param, | |
503 | u64 *out_param, | |
504 | u32 in_modifier, | |
505 | u8 op_modifier, | |
506 | u16 op, | |
cdb73db0 | 507 | unsigned long timeout) |
1da177e4 | 508 | { |
14abdffc | 509 | if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS) |
1da177e4 LT |
510 | return mthca_cmd_wait(dev, in_param, out_param, 1, |
511 | in_modifier, op_modifier, op, | |
cdb73db0 | 512 | timeout); |
1da177e4 LT |
513 | else |
514 | return mthca_cmd_poll(dev, in_param, out_param, 1, | |
515 | in_modifier, op_modifier, op, | |
cdb73db0 | 516 | timeout); |
1da177e4 LT |
517 | } |
518 | ||
80fd8238 RD |
519 | int mthca_cmd_init(struct mthca_dev *dev) |
520 | { | |
fd9cfdd1 | 521 | mutex_init(&dev->cmd.hcr_mutex); |
80fd8238 | 522 | sema_init(&dev->cmd.poll_sem, 1); |
14abdffc | 523 | dev->cmd.flags = 0; |
80fd8238 RD |
524 | |
525 | dev->hcr = ioremap(pci_resource_start(dev->pdev, 0) + MTHCA_HCR_BASE, | |
526 | MTHCA_HCR_SIZE); | |
527 | if (!dev->hcr) { | |
528 | mthca_err(dev, "Couldn't map command register."); | |
529 | return -ENOMEM; | |
530 | } | |
531 | ||
ed878458 RD |
532 | dev->cmd.pool = pci_pool_create("mthca_cmd", dev->pdev, |
533 | MTHCA_MAILBOX_SIZE, | |
534 | MTHCA_MAILBOX_SIZE, 0); | |
535 | if (!dev->cmd.pool) { | |
536 | iounmap(dev->hcr); | |
537 | return -ENOMEM; | |
538 | } | |
539 | ||
80fd8238 RD |
540 | return 0; |
541 | } | |
542 | ||
543 | void mthca_cmd_cleanup(struct mthca_dev *dev) | |
544 | { | |
ed878458 | 545 | pci_pool_destroy(dev->cmd.pool); |
80fd8238 | 546 | iounmap(dev->hcr); |
14abdffc EC |
547 | if (dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS) |
548 | iounmap(dev->cmd.dbell_map); | |
80fd8238 RD |
549 | } |
550 | ||
1da177e4 LT |
551 | /* |
552 | * Switch to using events to issue FW commands (should be called after | |
553 | * event queue to command events has been initialized). | |
554 | */ | |
555 | int mthca_cmd_use_events(struct mthca_dev *dev) | |
556 | { | |
557 | int i; | |
558 | ||
559 | dev->cmd.context = kmalloc(dev->cmd.max_cmds * | |
560 | sizeof (struct mthca_cmd_context), | |
561 | GFP_KERNEL); | |
562 | if (!dev->cmd.context) | |
563 | return -ENOMEM; | |
564 | ||
565 | for (i = 0; i < dev->cmd.max_cmds; ++i) { | |
566 | dev->cmd.context[i].token = i; | |
567 | dev->cmd.context[i].next = i + 1; | |
1da177e4 LT |
568 | } |
569 | ||
570 | dev->cmd.context[dev->cmd.max_cmds - 1].next = -1; | |
571 | dev->cmd.free_head = 0; | |
572 | ||
573 | sema_init(&dev->cmd.event_sem, dev->cmd.max_cmds); | |
574 | spin_lock_init(&dev->cmd.context_lock); | |
575 | ||
576 | for (dev->cmd.token_mask = 1; | |
577 | dev->cmd.token_mask < dev->cmd.max_cmds; | |
578 | dev->cmd.token_mask <<= 1) | |
579 | ; /* nothing */ | |
580 | --dev->cmd.token_mask; | |
581 | ||
14abdffc EC |
582 | dev->cmd.flags |= MTHCA_CMD_USE_EVENTS; |
583 | ||
1da177e4 LT |
584 | down(&dev->cmd.poll_sem); |
585 | ||
586 | return 0; | |
587 | } | |
588 | ||
589 | /* | |
590 | * Switch back to polling (used when shutting down the device) | |
591 | */ | |
592 | void mthca_cmd_use_polling(struct mthca_dev *dev) | |
593 | { | |
594 | int i; | |
595 | ||
14abdffc | 596 | dev->cmd.flags &= ~MTHCA_CMD_USE_EVENTS; |
1da177e4 LT |
597 | |
598 | for (i = 0; i < dev->cmd.max_cmds; ++i) | |
599 | down(&dev->cmd.event_sem); | |
600 | ||
601 | kfree(dev->cmd.context); | |
602 | ||
603 | up(&dev->cmd.poll_sem); | |
604 | } | |
605 | ||
ed878458 | 606 | struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev, |
87b750dc | 607 | gfp_t gfp_mask) |
ed878458 RD |
608 | { |
609 | struct mthca_mailbox *mailbox; | |
610 | ||
611 | mailbox = kmalloc(sizeof *mailbox, gfp_mask); | |
612 | if (!mailbox) | |
613 | return ERR_PTR(-ENOMEM); | |
614 | ||
615 | mailbox->buf = pci_pool_alloc(dev->cmd.pool, gfp_mask, &mailbox->dma); | |
616 | if (!mailbox->buf) { | |
617 | kfree(mailbox); | |
618 | return ERR_PTR(-ENOMEM); | |
619 | } | |
620 | ||
621 | return mailbox; | |
622 | } | |
623 | ||
624 | void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox) | |
625 | { | |
626 | if (!mailbox) | |
627 | return; | |
628 | ||
629 | pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma); | |
630 | kfree(mailbox); | |
631 | } | |
632 | ||
cdb73db0 | 633 | int mthca_SYS_EN(struct mthca_dev *dev) |
1da177e4 LT |
634 | { |
635 | u64 out; | |
636 | int ret; | |
637 | ||
cdb73db0 | 638 | ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, CMD_TIME_CLASS_D); |
1da177e4 | 639 | |
cdb73db0 | 640 | if (ret == -ENOMEM) |
1da177e4 LT |
641 | mthca_warn(dev, "SYS_EN DDR error: syn=%x, sock=%d, " |
642 | "sladdr=%d, SPD source=%s\n", | |
643 | (int) (out >> 6) & 0xf, (int) (out >> 4) & 3, | |
644 | (int) (out >> 1) & 7, (int) out & 1 ? "NVMEM" : "DIMM"); | |
645 | ||
646 | return ret; | |
647 | } | |
648 | ||
cdb73db0 | 649 | int mthca_SYS_DIS(struct mthca_dev *dev) |
1da177e4 | 650 | { |
cdb73db0 | 651 | return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C); |
1da177e4 LT |
652 | } |
653 | ||
654 | static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, | |
cdb73db0 | 655 | u64 virt) |
1da177e4 | 656 | { |
ed878458 | 657 | struct mthca_mailbox *mailbox; |
1da177e4 | 658 | struct mthca_icm_iter iter; |
ed878458 | 659 | __be64 *pages; |
1da177e4 LT |
660 | int lg; |
661 | int nent = 0; | |
662 | int i; | |
663 | int err = 0; | |
664 | int ts = 0, tc = 0; | |
665 | ||
ed878458 RD |
666 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
667 | if (IS_ERR(mailbox)) | |
668 | return PTR_ERR(mailbox); | |
669 | memset(mailbox->buf, 0, MTHCA_MAILBOX_SIZE); | |
670 | pages = mailbox->buf; | |
1da177e4 LT |
671 | |
672 | for (mthca_icm_first(icm, &iter); | |
673 | !mthca_icm_last(&iter); | |
674 | mthca_icm_next(&iter)) { | |
675 | /* | |
676 | * We have to pass pages that are aligned to their | |
677 | * size, so find the least significant 1 in the | |
678 | * address or size and use that as our log2 size. | |
679 | */ | |
680 | lg = ffs(mthca_icm_addr(&iter) | mthca_icm_size(&iter)) - 1; | |
8d3ef29d IR |
681 | if (lg < MTHCA_ICM_PAGE_SHIFT) { |
682 | mthca_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n", | |
683 | MTHCA_ICM_PAGE_SIZE, | |
1da177e4 LT |
684 | (unsigned long long) mthca_icm_addr(&iter), |
685 | mthca_icm_size(&iter)); | |
686 | err = -EINVAL; | |
687 | goto out; | |
688 | } | |
59f174fa | 689 | for (i = 0; i < mthca_icm_size(&iter) >> lg; ++i) { |
1da177e4 | 690 | if (virt != -1) { |
ed878458 | 691 | pages[nent * 2] = cpu_to_be64(virt); |
1da177e4 LT |
692 | virt += 1 << lg; |
693 | } | |
694 | ||
8d3ef29d IR |
695 | pages[nent * 2 + 1] = |
696 | cpu_to_be64((mthca_icm_addr(&iter) + (i << lg)) | | |
697 | (lg - MTHCA_ICM_PAGE_SHIFT)); | |
1da177e4 LT |
698 | ts += 1 << (lg - 10); |
699 | ++tc; | |
700 | ||
44dd823b | 701 | if (++nent == MTHCA_MAILBOX_SIZE / 16) { |
ed878458 | 702 | err = mthca_cmd(dev, mailbox->dma, nent, 0, op, |
cdb73db0 GR |
703 | CMD_TIME_CLASS_B); |
704 | if (err) | |
1da177e4 LT |
705 | goto out; |
706 | nent = 0; | |
707 | } | |
708 | } | |
709 | } | |
710 | ||
711 | if (nent) | |
ed878458 | 712 | err = mthca_cmd(dev, mailbox->dma, nent, 0, op, |
cdb73db0 | 713 | CMD_TIME_CLASS_B); |
1da177e4 LT |
714 | |
715 | switch (op) { | |
716 | case CMD_MAP_FA: | |
717 | mthca_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts); | |
718 | break; | |
719 | case CMD_MAP_ICM_AUX: | |
720 | mthca_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts); | |
721 | break; | |
722 | case CMD_MAP_ICM: | |
723 | mthca_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n", | |
724 | tc, ts, (unsigned long long) virt - (ts << 10)); | |
725 | break; | |
726 | } | |
727 | ||
728 | out: | |
ed878458 | 729 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
730 | return err; |
731 | } | |
732 | ||
cdb73db0 | 733 | int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm) |
1da177e4 | 734 | { |
cdb73db0 | 735 | return mthca_map_cmd(dev, CMD_MAP_FA, icm, -1); |
1da177e4 LT |
736 | } |
737 | ||
cdb73db0 | 738 | int mthca_UNMAP_FA(struct mthca_dev *dev) |
1da177e4 | 739 | { |
cdb73db0 | 740 | return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_FA, CMD_TIME_CLASS_B); |
1da177e4 LT |
741 | } |
742 | ||
cdb73db0 | 743 | int mthca_RUN_FW(struct mthca_dev *dev) |
1da177e4 | 744 | { |
cdb73db0 | 745 | return mthca_cmd(dev, 0, 0, 0, CMD_RUN_FW, CMD_TIME_CLASS_A); |
1da177e4 LT |
746 | } |
747 | ||
14abdffc EC |
748 | static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base) |
749 | { | |
eb4a7cbf | 750 | phys_addr_t addr; |
14abdffc EC |
751 | u16 max_off = 0; |
752 | int i; | |
753 | ||
754 | for (i = 0; i < 8; ++i) | |
755 | max_off = max(max_off, dev->cmd.dbell_offsets[i]); | |
756 | ||
757 | if ((base & PAGE_MASK) != ((base + max_off) & PAGE_MASK)) { | |
758 | mthca_warn(dev, "Firmware doorbell region at 0x%016llx, " | |
759 | "length 0x%x crosses a page boundary\n", | |
760 | (unsigned long long) base, max_off); | |
761 | return; | |
762 | } | |
763 | ||
764 | addr = pci_resource_start(dev->pdev, 2) + | |
765 | ((pci_resource_len(dev->pdev, 2) - 1) & base); | |
766 | dev->cmd.dbell_map = ioremap(addr, max_off + sizeof(u32)); | |
767 | if (!dev->cmd.dbell_map) | |
768 | return; | |
769 | ||
770 | dev->cmd.flags |= MTHCA_CMD_POST_DOORBELLS; | |
771 | mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n"); | |
772 | } | |
773 | ||
cdb73db0 | 774 | int mthca_QUERY_FW(struct mthca_dev *dev) |
1da177e4 | 775 | { |
ed878458 | 776 | struct mthca_mailbox *mailbox; |
1da177e4 | 777 | u32 *outbox; |
14abdffc EC |
778 | u64 base; |
779 | u32 tmp; | |
1da177e4 LT |
780 | int err = 0; |
781 | u8 lg; | |
14abdffc | 782 | int i; |
1da177e4 LT |
783 | |
784 | #define QUERY_FW_OUT_SIZE 0x100 | |
785 | #define QUERY_FW_VER_OFFSET 0x00 | |
786 | #define QUERY_FW_MAX_CMD_OFFSET 0x0f | |
787 | #define QUERY_FW_ERR_START_OFFSET 0x30 | |
788 | #define QUERY_FW_ERR_SIZE_OFFSET 0x38 | |
789 | ||
14abdffc EC |
790 | #define QUERY_FW_CMD_DB_EN_OFFSET 0x10 |
791 | #define QUERY_FW_CMD_DB_OFFSET 0x50 | |
792 | #define QUERY_FW_CMD_DB_BASE 0x60 | |
793 | ||
1da177e4 LT |
794 | #define QUERY_FW_START_OFFSET 0x20 |
795 | #define QUERY_FW_END_OFFSET 0x28 | |
796 | ||
797 | #define QUERY_FW_SIZE_OFFSET 0x00 | |
798 | #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20 | |
799 | #define QUERY_FW_EQ_ARM_BASE_OFFSET 0x40 | |
800 | #define QUERY_FW_EQ_SET_CI_BASE_OFFSET 0x48 | |
801 | ||
ed878458 RD |
802 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
803 | if (IS_ERR(mailbox)) | |
804 | return PTR_ERR(mailbox); | |
805 | outbox = mailbox->buf; | |
1da177e4 | 806 | |
ed878458 | 807 | err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_FW, |
cdb73db0 | 808 | CMD_TIME_CLASS_A); |
1da177e4 LT |
809 | |
810 | if (err) | |
811 | goto out; | |
812 | ||
813 | MTHCA_GET(dev->fw_ver, outbox, QUERY_FW_VER_OFFSET); | |
814 | /* | |
3e1db334 | 815 | * FW subminor version is at more significant bits than minor |
1da177e4 LT |
816 | * version, so swap here. |
817 | */ | |
818 | dev->fw_ver = (dev->fw_ver & 0xffff00000000ull) | | |
819 | ((dev->fw_ver & 0xffff0000ull) >> 16) | | |
820 | ((dev->fw_ver & 0x0000ffffull) << 16); | |
821 | ||
8fdf679f RD |
822 | MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET); |
823 | dev->cmd.max_cmds = 1 << lg; | |
824 | ||
14abdffc EC |
825 | mthca_dbg(dev, "FW version %012llx, max commands %d\n", |
826 | (unsigned long long) dev->fw_ver, dev->cmd.max_cmds); | |
827 | ||
3d155f8c RD |
828 | MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET); |
829 | MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET); | |
1da177e4 | 830 | |
3d155f8c RD |
831 | mthca_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x\n", |
832 | (unsigned long long) dev->catas_err.addr, dev->catas_err.size); | |
1da177e4 | 833 | |
14abdffc EC |
834 | MTHCA_GET(tmp, outbox, QUERY_FW_CMD_DB_EN_OFFSET); |
835 | if (tmp & 0x1) { | |
836 | mthca_dbg(dev, "FW supports commands through doorbells\n"); | |
837 | ||
838 | MTHCA_GET(base, outbox, QUERY_FW_CMD_DB_BASE); | |
839 | for (i = 0; i < MTHCA_CMD_NUM_DBELL_DWORDS; ++i) | |
840 | MTHCA_GET(dev->cmd.dbell_offsets[i], outbox, | |
841 | QUERY_FW_CMD_DB_OFFSET + (i << 1)); | |
842 | ||
843 | mthca_setup_cmd_doorbells(dev, base); | |
844 | } | |
845 | ||
d10ddbf6 | 846 | if (mthca_is_memfree(dev)) { |
1da177e4 LT |
847 | MTHCA_GET(dev->fw.arbel.fw_pages, outbox, QUERY_FW_SIZE_OFFSET); |
848 | MTHCA_GET(dev->fw.arbel.clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET); | |
849 | MTHCA_GET(dev->fw.arbel.eq_arm_base, outbox, QUERY_FW_EQ_ARM_BASE_OFFSET); | |
850 | MTHCA_GET(dev->fw.arbel.eq_set_ci_base, outbox, QUERY_FW_EQ_SET_CI_BASE_OFFSET); | |
851 | mthca_dbg(dev, "FW size %d KB\n", dev->fw.arbel.fw_pages << 2); | |
852 | ||
853 | /* | |
8d3ef29d IR |
854 | * Round up number of system pages needed in case |
855 | * MTHCA_ICM_PAGE_SIZE < PAGE_SIZE. | |
1da177e4 LT |
856 | */ |
857 | dev->fw.arbel.fw_pages = | |
8d3ef29d IR |
858 | ALIGN(dev->fw.arbel.fw_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >> |
859 | (PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT); | |
1da177e4 LT |
860 | |
861 | mthca_dbg(dev, "Clear int @ %llx, EQ arm @ %llx, EQ set CI @ %llx\n", | |
862 | (unsigned long long) dev->fw.arbel.clr_int_base, | |
863 | (unsigned long long) dev->fw.arbel.eq_arm_base, | |
864 | (unsigned long long) dev->fw.arbel.eq_set_ci_base); | |
865 | } else { | |
866 | MTHCA_GET(dev->fw.tavor.fw_start, outbox, QUERY_FW_START_OFFSET); | |
867 | MTHCA_GET(dev->fw.tavor.fw_end, outbox, QUERY_FW_END_OFFSET); | |
868 | ||
869 | mthca_dbg(dev, "FW size %d KB (start %llx, end %llx)\n", | |
870 | (int) ((dev->fw.tavor.fw_end - dev->fw.tavor.fw_start) >> 10), | |
871 | (unsigned long long) dev->fw.tavor.fw_start, | |
872 | (unsigned long long) dev->fw.tavor.fw_end); | |
873 | } | |
874 | ||
875 | out: | |
ed878458 | 876 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
877 | return err; |
878 | } | |
879 | ||
cdb73db0 | 880 | int mthca_ENABLE_LAM(struct mthca_dev *dev) |
1da177e4 | 881 | { |
ed878458 | 882 | struct mthca_mailbox *mailbox; |
1da177e4 LT |
883 | u8 info; |
884 | u32 *outbox; | |
1da177e4 LT |
885 | int err = 0; |
886 | ||
887 | #define ENABLE_LAM_OUT_SIZE 0x100 | |
888 | #define ENABLE_LAM_START_OFFSET 0x00 | |
889 | #define ENABLE_LAM_END_OFFSET 0x08 | |
890 | #define ENABLE_LAM_INFO_OFFSET 0x13 | |
891 | ||
892 | #define ENABLE_LAM_INFO_HIDDEN_FLAG (1 << 4) | |
893 | #define ENABLE_LAM_INFO_ECC_MASK 0x3 | |
894 | ||
ed878458 RD |
895 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
896 | if (IS_ERR(mailbox)) | |
897 | return PTR_ERR(mailbox); | |
898 | outbox = mailbox->buf; | |
1da177e4 | 899 | |
ed878458 | 900 | err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_ENABLE_LAM, |
cdb73db0 | 901 | CMD_TIME_CLASS_C); |
1da177e4 LT |
902 | |
903 | if (err) | |
904 | goto out; | |
905 | ||
1da177e4 LT |
906 | MTHCA_GET(dev->ddr_start, outbox, ENABLE_LAM_START_OFFSET); |
907 | MTHCA_GET(dev->ddr_end, outbox, ENABLE_LAM_END_OFFSET); | |
908 | MTHCA_GET(info, outbox, ENABLE_LAM_INFO_OFFSET); | |
909 | ||
910 | if (!!(info & ENABLE_LAM_INFO_HIDDEN_FLAG) != | |
911 | !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) { | |
912 | mthca_info(dev, "FW reports that HCA-attached memory " | |
913 | "is %s hidden; does not match PCI config\n", | |
914 | (info & ENABLE_LAM_INFO_HIDDEN_FLAG) ? | |
915 | "" : "not"); | |
916 | } | |
917 | if (info & ENABLE_LAM_INFO_HIDDEN_FLAG) | |
918 | mthca_dbg(dev, "HCA-attached memory is hidden.\n"); | |
919 | ||
920 | mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n", | |
921 | (int) ((dev->ddr_end - dev->ddr_start) >> 10), | |
922 | (unsigned long long) dev->ddr_start, | |
923 | (unsigned long long) dev->ddr_end); | |
924 | ||
925 | out: | |
ed878458 | 926 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
927 | return err; |
928 | } | |
929 | ||
cdb73db0 | 930 | int mthca_DISABLE_LAM(struct mthca_dev *dev) |
1da177e4 | 931 | { |
cdb73db0 | 932 | return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C); |
1da177e4 LT |
933 | } |
934 | ||
cdb73db0 | 935 | int mthca_QUERY_DDR(struct mthca_dev *dev) |
1da177e4 | 936 | { |
ed878458 | 937 | struct mthca_mailbox *mailbox; |
1da177e4 LT |
938 | u8 info; |
939 | u32 *outbox; | |
1da177e4 LT |
940 | int err = 0; |
941 | ||
942 | #define QUERY_DDR_OUT_SIZE 0x100 | |
943 | #define QUERY_DDR_START_OFFSET 0x00 | |
944 | #define QUERY_DDR_END_OFFSET 0x08 | |
945 | #define QUERY_DDR_INFO_OFFSET 0x13 | |
946 | ||
947 | #define QUERY_DDR_INFO_HIDDEN_FLAG (1 << 4) | |
948 | #define QUERY_DDR_INFO_ECC_MASK 0x3 | |
949 | ||
ed878458 RD |
950 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
951 | if (IS_ERR(mailbox)) | |
952 | return PTR_ERR(mailbox); | |
953 | outbox = mailbox->buf; | |
1da177e4 | 954 | |
ed878458 | 955 | err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DDR, |
cdb73db0 | 956 | CMD_TIME_CLASS_A); |
1da177e4 LT |
957 | |
958 | if (err) | |
959 | goto out; | |
960 | ||
961 | MTHCA_GET(dev->ddr_start, outbox, QUERY_DDR_START_OFFSET); | |
962 | MTHCA_GET(dev->ddr_end, outbox, QUERY_DDR_END_OFFSET); | |
963 | MTHCA_GET(info, outbox, QUERY_DDR_INFO_OFFSET); | |
964 | ||
965 | if (!!(info & QUERY_DDR_INFO_HIDDEN_FLAG) != | |
966 | !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) { | |
967 | mthca_info(dev, "FW reports that HCA-attached memory " | |
968 | "is %s hidden; does not match PCI config\n", | |
969 | (info & QUERY_DDR_INFO_HIDDEN_FLAG) ? | |
970 | "" : "not"); | |
971 | } | |
972 | if (info & QUERY_DDR_INFO_HIDDEN_FLAG) | |
973 | mthca_dbg(dev, "HCA-attached memory is hidden.\n"); | |
974 | ||
975 | mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n", | |
976 | (int) ((dev->ddr_end - dev->ddr_start) >> 10), | |
977 | (unsigned long long) dev->ddr_start, | |
978 | (unsigned long long) dev->ddr_end); | |
979 | ||
980 | out: | |
ed878458 | 981 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
982 | return err; |
983 | } | |
984 | ||
985 | int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, | |
cdb73db0 | 986 | struct mthca_dev_lim *dev_lim) |
1da177e4 | 987 | { |
ed878458 | 988 | struct mthca_mailbox *mailbox; |
1da177e4 | 989 | u32 *outbox; |
1da177e4 LT |
990 | u8 field; |
991 | u16 size; | |
bf6a9e31 | 992 | u16 stat_rate; |
1da177e4 LT |
993 | int err; |
994 | ||
995 | #define QUERY_DEV_LIM_OUT_SIZE 0x100 | |
996 | #define QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET 0x10 | |
997 | #define QUERY_DEV_LIM_MAX_QP_SZ_OFFSET 0x11 | |
998 | #define QUERY_DEV_LIM_RSVD_QP_OFFSET 0x12 | |
999 | #define QUERY_DEV_LIM_MAX_QP_OFFSET 0x13 | |
1000 | #define QUERY_DEV_LIM_RSVD_SRQ_OFFSET 0x14 | |
1001 | #define QUERY_DEV_LIM_MAX_SRQ_OFFSET 0x15 | |
1002 | #define QUERY_DEV_LIM_RSVD_EEC_OFFSET 0x16 | |
1003 | #define QUERY_DEV_LIM_MAX_EEC_OFFSET 0x17 | |
1004 | #define QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET 0x19 | |
1005 | #define QUERY_DEV_LIM_RSVD_CQ_OFFSET 0x1a | |
1006 | #define QUERY_DEV_LIM_MAX_CQ_OFFSET 0x1b | |
1007 | #define QUERY_DEV_LIM_MAX_MPT_OFFSET 0x1d | |
1008 | #define QUERY_DEV_LIM_RSVD_EQ_OFFSET 0x1e | |
1009 | #define QUERY_DEV_LIM_MAX_EQ_OFFSET 0x1f | |
1010 | #define QUERY_DEV_LIM_RSVD_MTT_OFFSET 0x20 | |
1011 | #define QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET 0x21 | |
1012 | #define QUERY_DEV_LIM_RSVD_MRW_OFFSET 0x22 | |
1013 | #define QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET 0x23 | |
1014 | #define QUERY_DEV_LIM_MAX_AV_OFFSET 0x27 | |
1015 | #define QUERY_DEV_LIM_MAX_REQ_QP_OFFSET 0x29 | |
1016 | #define QUERY_DEV_LIM_MAX_RES_QP_OFFSET 0x2b | |
1017 | #define QUERY_DEV_LIM_MAX_RDMA_OFFSET 0x2f | |
1018 | #define QUERY_DEV_LIM_RSZ_SRQ_OFFSET 0x33 | |
1019 | #define QUERY_DEV_LIM_ACK_DELAY_OFFSET 0x35 | |
1020 | #define QUERY_DEV_LIM_MTU_WIDTH_OFFSET 0x36 | |
1021 | #define QUERY_DEV_LIM_VL_PORT_OFFSET 0x37 | |
1022 | #define QUERY_DEV_LIM_MAX_GID_OFFSET 0x3b | |
bf6a9e31 | 1023 | #define QUERY_DEV_LIM_RATE_SUPPORT_OFFSET 0x3c |
1da177e4 LT |
1024 | #define QUERY_DEV_LIM_MAX_PKEY_OFFSET 0x3f |
1025 | #define QUERY_DEV_LIM_FLAGS_OFFSET 0x44 | |
1026 | #define QUERY_DEV_LIM_RSVD_UAR_OFFSET 0x48 | |
1027 | #define QUERY_DEV_LIM_UAR_SZ_OFFSET 0x49 | |
1028 | #define QUERY_DEV_LIM_PAGE_SZ_OFFSET 0x4b | |
1029 | #define QUERY_DEV_LIM_MAX_SG_OFFSET 0x51 | |
1030 | #define QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET 0x52 | |
1031 | #define QUERY_DEV_LIM_MAX_SG_RQ_OFFSET 0x55 | |
1032 | #define QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET 0x56 | |
1033 | #define QUERY_DEV_LIM_MAX_QP_MCG_OFFSET 0x61 | |
1034 | #define QUERY_DEV_LIM_RSVD_MCG_OFFSET 0x62 | |
1035 | #define QUERY_DEV_LIM_MAX_MCG_OFFSET 0x63 | |
1036 | #define QUERY_DEV_LIM_RSVD_PD_OFFSET 0x64 | |
1037 | #define QUERY_DEV_LIM_MAX_PD_OFFSET 0x65 | |
1038 | #define QUERY_DEV_LIM_RSVD_RDD_OFFSET 0x66 | |
1039 | #define QUERY_DEV_LIM_MAX_RDD_OFFSET 0x67 | |
1040 | #define QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET 0x80 | |
1041 | #define QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET 0x82 | |
1042 | #define QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET 0x84 | |
1043 | #define QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET 0x86 | |
1044 | #define QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET 0x88 | |
1045 | #define QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET 0x8a | |
1046 | #define QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET 0x8c | |
1047 | #define QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET 0x8e | |
1048 | #define QUERY_DEV_LIM_MTT_ENTRY_SZ_OFFSET 0x90 | |
1049 | #define QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET 0x92 | |
1050 | #define QUERY_DEV_LIM_PBL_SZ_OFFSET 0x96 | |
1051 | #define QUERY_DEV_LIM_BMME_FLAGS_OFFSET 0x97 | |
1052 | #define QUERY_DEV_LIM_RSVD_LKEY_OFFSET 0x98 | |
1053 | #define QUERY_DEV_LIM_LAMR_OFFSET 0x9f | |
1054 | #define QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET 0xa0 | |
1055 | ||
ed878458 RD |
1056 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
1057 | if (IS_ERR(mailbox)) | |
1058 | return PTR_ERR(mailbox); | |
1059 | outbox = mailbox->buf; | |
1da177e4 | 1060 | |
ed878458 | 1061 | err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DEV_LIM, |
cdb73db0 | 1062 | CMD_TIME_CLASS_A); |
1da177e4 LT |
1063 | |
1064 | if (err) | |
1065 | goto out; | |
1066 | ||
1da177e4 LT |
1067 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_QP_OFFSET); |
1068 | dev_lim->reserved_qps = 1 << (field & 0xf); | |
1069 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_OFFSET); | |
1070 | dev_lim->max_qps = 1 << (field & 0x1f); | |
1071 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_SRQ_OFFSET); | |
1072 | dev_lim->reserved_srqs = 1 << (field >> 4); | |
1073 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_OFFSET); | |
1074 | dev_lim->max_srqs = 1 << (field & 0x1f); | |
1075 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EEC_OFFSET); | |
1076 | dev_lim->reserved_eecs = 1 << (field & 0xf); | |
1077 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EEC_OFFSET); | |
1078 | dev_lim->max_eecs = 1 << (field & 0x1f); | |
1079 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET); | |
1080 | dev_lim->max_cq_sz = 1 << field; | |
1081 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_CQ_OFFSET); | |
1082 | dev_lim->reserved_cqs = 1 << (field & 0xf); | |
1083 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_OFFSET); | |
1084 | dev_lim->max_cqs = 1 << (field & 0x1f); | |
1085 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MPT_OFFSET); | |
1086 | dev_lim->max_mpts = 1 << (field & 0x3f); | |
1087 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EQ_OFFSET); | |
1088 | dev_lim->reserved_eqs = 1 << (field & 0xf); | |
1089 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET); | |
1090 | dev_lim->max_eqs = 1 << (field & 0x7); | |
1091 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET); | |
c7d204e8 MT |
1092 | if (mthca_is_memfree(dev)) |
1093 | dev_lim->reserved_mtts = ALIGN((1 << (field >> 4)) * sizeof(u64), | |
c1f67a88 | 1094 | dev->limits.mtt_seg_size) / dev->limits.mtt_seg_size; |
c7d204e8 MT |
1095 | else |
1096 | dev_lim->reserved_mtts = 1 << (field >> 4); | |
1da177e4 LT |
1097 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET); |
1098 | dev_lim->max_mrw_sz = 1 << field; | |
1099 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET); | |
1100 | dev_lim->reserved_mrws = 1 << (field & 0xf); | |
1101 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET); | |
1102 | dev_lim->max_mtt_seg = 1 << (field & 0x3f); | |
1103 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_REQ_QP_OFFSET); | |
1104 | dev_lim->max_requester_per_qp = 1 << (field & 0x3f); | |
1105 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RES_QP_OFFSET); | |
1106 | dev_lim->max_responder_per_qp = 1 << (field & 0x3f); | |
1107 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDMA_OFFSET); | |
1108 | dev_lim->max_rdma_global = 1 << (field & 0x3f); | |
1109 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_ACK_DELAY_OFFSET); | |
1110 | dev_lim->local_ca_ack_delay = field & 0x1f; | |
1111 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MTU_WIDTH_OFFSET); | |
1112 | dev_lim->max_mtu = field >> 4; | |
1113 | dev_lim->max_port_width = field & 0xf; | |
1114 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_VL_PORT_OFFSET); | |
1115 | dev_lim->max_vl = field >> 4; | |
1116 | dev_lim->num_ports = field & 0xf; | |
1117 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_GID_OFFSET); | |
1118 | dev_lim->max_gids = 1 << (field & 0xf); | |
bf6a9e31 JM |
1119 | MTHCA_GET(stat_rate, outbox, QUERY_DEV_LIM_RATE_SUPPORT_OFFSET); |
1120 | dev_lim->stat_rate_support = stat_rate; | |
1da177e4 LT |
1121 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PKEY_OFFSET); |
1122 | dev_lim->max_pkeys = 1 << (field & 0xf); | |
1123 | MTHCA_GET(dev_lim->flags, outbox, QUERY_DEV_LIM_FLAGS_OFFSET); | |
1124 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_UAR_OFFSET); | |
1125 | dev_lim->reserved_uars = field >> 4; | |
1126 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_UAR_SZ_OFFSET); | |
1127 | dev_lim->uar_size = 1 << ((field & 0x3f) + 20); | |
1128 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_PAGE_SZ_OFFSET); | |
1129 | dev_lim->min_page_sz = 1 << field; | |
1130 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_OFFSET); | |
1131 | dev_lim->max_sg = field; | |
1132 | ||
1133 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET); | |
1134 | dev_lim->max_desc_sz = size; | |
1135 | ||
1136 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_MCG_OFFSET); | |
1137 | dev_lim->max_qp_per_mcg = 1 << field; | |
1138 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MCG_OFFSET); | |
1139 | dev_lim->reserved_mgms = field & 0xf; | |
1140 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MCG_OFFSET); | |
1141 | dev_lim->max_mcgs = 1 << field; | |
1142 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_PD_OFFSET); | |
1143 | dev_lim->reserved_pds = field >> 4; | |
1144 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PD_OFFSET); | |
1145 | dev_lim->max_pds = 1 << (field & 0x3f); | |
1146 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_RDD_OFFSET); | |
1147 | dev_lim->reserved_rdds = field >> 4; | |
1148 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDD_OFFSET); | |
1149 | dev_lim->max_rdds = 1 << (field & 0x3f); | |
1150 | ||
1151 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET); | |
1152 | dev_lim->eec_entry_sz = size; | |
1153 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET); | |
1154 | dev_lim->qpc_entry_sz = size; | |
1155 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET); | |
1156 | dev_lim->eeec_entry_sz = size; | |
1157 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET); | |
1158 | dev_lim->eqpc_entry_sz = size; | |
1159 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET); | |
1160 | dev_lim->eqc_entry_sz = size; | |
1161 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET); | |
1162 | dev_lim->cqc_entry_sz = size; | |
1163 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET); | |
1164 | dev_lim->srq_entry_sz = size; | |
1165 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET); | |
1166 | dev_lim->uar_scratch_entry_sz = size; | |
1167 | ||
d10ddbf6 | 1168 | if (mthca_is_memfree(dev)) { |
a3c8ab4f JM |
1169 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET); |
1170 | dev_lim->max_srq_sz = 1 << field; | |
1171 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET); | |
1172 | dev_lim->max_qp_sz = 1 << field; | |
1da177e4 LT |
1173 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSZ_SRQ_OFFSET); |
1174 | dev_lim->hca.arbel.resize_srq = field & 1; | |
8cf2daf3 RD |
1175 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_RQ_OFFSET); |
1176 | dev_lim->max_sg = min_t(int, field, dev_lim->max_sg); | |
77369ed3 JM |
1177 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET); |
1178 | dev_lim->max_desc_sz = min_t(int, size, dev_lim->max_desc_sz); | |
1da177e4 LT |
1179 | MTHCA_GET(size, outbox, QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET); |
1180 | dev_lim->mpt_entry_sz = size; | |
1181 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_PBL_SZ_OFFSET); | |
1182 | dev_lim->hca.arbel.max_pbl_sz = 1 << (field & 0x3f); | |
1183 | MTHCA_GET(dev_lim->hca.arbel.bmme_flags, outbox, | |
1184 | QUERY_DEV_LIM_BMME_FLAGS_OFFSET); | |
1185 | MTHCA_GET(dev_lim->hca.arbel.reserved_lkey, outbox, | |
1186 | QUERY_DEV_LIM_RSVD_LKEY_OFFSET); | |
1187 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_LAMR_OFFSET); | |
1188 | dev_lim->hca.arbel.lam_required = field & 1; | |
1189 | MTHCA_GET(dev_lim->hca.arbel.max_icm_sz, outbox, | |
1190 | QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET); | |
1191 | ||
1192 | if (dev_lim->hca.arbel.bmme_flags & 1) | |
1193 | mthca_dbg(dev, "Base MM extensions: yes " | |
1194 | "(flags %d, max PBL %d, rsvd L_Key %08x)\n", | |
1195 | dev_lim->hca.arbel.bmme_flags, | |
1196 | dev_lim->hca.arbel.max_pbl_sz, | |
1197 | dev_lim->hca.arbel.reserved_lkey); | |
1198 | else | |
1199 | mthca_dbg(dev, "Base MM extensions: no\n"); | |
1200 | ||
1201 | mthca_dbg(dev, "Max ICM size %lld MB\n", | |
1202 | (unsigned long long) dev_lim->hca.arbel.max_icm_sz >> 20); | |
1203 | } else { | |
a3c8ab4f JM |
1204 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET); |
1205 | dev_lim->max_srq_sz = (1 << field) - 1; | |
1206 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET); | |
1207 | dev_lim->max_qp_sz = (1 << field) - 1; | |
1da177e4 LT |
1208 | MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_AV_OFFSET); |
1209 | dev_lim->hca.tavor.max_avs = 1 << (field & 0x3f); | |
1da177e4 LT |
1210 | dev_lim->mpt_entry_sz = MTHCA_MPT_ENTRY_SIZE; |
1211 | } | |
1212 | ||
f295c79b RD |
1213 | mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n", |
1214 | dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz); | |
1215 | mthca_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n", | |
1216 | dev_lim->max_srqs, dev_lim->reserved_srqs, dev_lim->srq_entry_sz); | |
1217 | mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n", | |
1218 | dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz); | |
1219 | mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n", | |
1220 | dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz); | |
1221 | mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n", | |
1222 | dev_lim->reserved_mrws, dev_lim->reserved_mtts); | |
1223 | mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n", | |
1224 | dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars); | |
1225 | mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n", | |
1226 | dev_lim->max_pds, dev_lim->reserved_mgms); | |
1227 | mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n", | |
1228 | dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz); | |
1229 | ||
1230 | mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags); | |
1231 | ||
1da177e4 | 1232 | out: |
ed878458 | 1233 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
1234 | return err; |
1235 | } | |
1236 | ||
2e8b981c MT |
1237 | static void get_board_id(void *vsd, char *board_id) |
1238 | { | |
1239 | int i; | |
1240 | ||
1241 | #define VSD_OFFSET_SIG1 0x00 | |
1242 | #define VSD_OFFSET_SIG2 0xde | |
1243 | #define VSD_OFFSET_MLX_BOARD_ID 0xd0 | |
1244 | #define VSD_OFFSET_TS_BOARD_ID 0x20 | |
1245 | ||
1246 | #define VSD_SIGNATURE_TOPSPIN 0x5ad | |
1247 | ||
1248 | memset(board_id, 0, MTHCA_BOARD_ID_LEN); | |
1249 | ||
1250 | if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN && | |
1251 | be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) { | |
1252 | strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MTHCA_BOARD_ID_LEN); | |
1253 | } else { | |
1254 | /* | |
1255 | * The board ID is a string but the firmware byte | |
1256 | * swaps each 4-byte word before passing it back to | |
1257 | * us. Therefore we need to swab it before printing. | |
1258 | */ | |
1259 | for (i = 0; i < 4; ++i) | |
1260 | ((u32 *) board_id)[i] = | |
1261 | swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4)); | |
1262 | } | |
1263 | } | |
1264 | ||
1da177e4 | 1265 | int mthca_QUERY_ADAPTER(struct mthca_dev *dev, |
cdb73db0 | 1266 | struct mthca_adapter *adapter) |
1da177e4 | 1267 | { |
ed878458 | 1268 | struct mthca_mailbox *mailbox; |
1da177e4 | 1269 | u32 *outbox; |
1da177e4 LT |
1270 | int err; |
1271 | ||
1272 | #define QUERY_ADAPTER_OUT_SIZE 0x100 | |
1273 | #define QUERY_ADAPTER_VENDOR_ID_OFFSET 0x00 | |
1274 | #define QUERY_ADAPTER_DEVICE_ID_OFFSET 0x04 | |
1275 | #define QUERY_ADAPTER_REVISION_ID_OFFSET 0x08 | |
1276 | #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10 | |
2e8b981c | 1277 | #define QUERY_ADAPTER_VSD_OFFSET 0x20 |
1da177e4 | 1278 | |
ed878458 RD |
1279 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
1280 | if (IS_ERR(mailbox)) | |
1281 | return PTR_ERR(mailbox); | |
1282 | outbox = mailbox->buf; | |
1da177e4 | 1283 | |
ed878458 | 1284 | err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_ADAPTER, |
cdb73db0 | 1285 | CMD_TIME_CLASS_A); |
1da177e4 LT |
1286 | |
1287 | if (err) | |
1288 | goto out; | |
1289 | ||
6ccef1de JM |
1290 | if (!mthca_is_memfree(dev)) { |
1291 | MTHCA_GET(adapter->vendor_id, outbox, | |
1292 | QUERY_ADAPTER_VENDOR_ID_OFFSET); | |
1293 | MTHCA_GET(adapter->device_id, outbox, | |
1294 | QUERY_ADAPTER_DEVICE_ID_OFFSET); | |
1295 | MTHCA_GET(adapter->revision_id, outbox, | |
1296 | QUERY_ADAPTER_REVISION_ID_OFFSET); | |
1297 | } | |
ed878458 | 1298 | MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET); |
1da177e4 | 1299 | |
2e8b981c MT |
1300 | get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4, |
1301 | adapter->board_id); | |
1302 | ||
1da177e4 | 1303 | out: |
ed878458 | 1304 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
1305 | return err; |
1306 | } | |
1307 | ||
1308 | int mthca_INIT_HCA(struct mthca_dev *dev, | |
cdb73db0 | 1309 | struct mthca_init_hca_param *param) |
1da177e4 | 1310 | { |
ed878458 | 1311 | struct mthca_mailbox *mailbox; |
97f52eb4 | 1312 | __be32 *inbox; |
1da177e4 LT |
1313 | int err; |
1314 | ||
1315 | #define INIT_HCA_IN_SIZE 0x200 | |
651eaac9 EC |
1316 | #define INIT_HCA_FLAGS1_OFFSET 0x00c |
1317 | #define INIT_HCA_FLAGS2_OFFSET 0x014 | |
1da177e4 LT |
1318 | #define INIT_HCA_QPC_OFFSET 0x020 |
1319 | #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10) | |
1320 | #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17) | |
1321 | #define INIT_HCA_EEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x20) | |
1322 | #define INIT_HCA_LOG_EEC_OFFSET (INIT_HCA_QPC_OFFSET + 0x27) | |
1323 | #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28) | |
1324 | #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f) | |
1325 | #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30) | |
1326 | #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37) | |
1327 | #define INIT_HCA_EQPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40) | |
1328 | #define INIT_HCA_EEEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50) | |
1329 | #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60) | |
1330 | #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67) | |
1331 | #define INIT_HCA_RDB_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70) | |
1332 | #define INIT_HCA_UDAV_OFFSET 0x0b0 | |
1333 | #define INIT_HCA_UDAV_LKEY_OFFSET (INIT_HCA_UDAV_OFFSET + 0x0) | |
1334 | #define INIT_HCA_UDAV_PD_OFFSET (INIT_HCA_UDAV_OFFSET + 0x4) | |
1335 | #define INIT_HCA_MCAST_OFFSET 0x0c0 | |
1336 | #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00) | |
1337 | #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12) | |
1338 | #define INIT_HCA_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16) | |
1339 | #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b) | |
1340 | #define INIT_HCA_TPT_OFFSET 0x0f0 | |
1341 | #define INIT_HCA_MPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00) | |
1342 | #define INIT_HCA_MTT_SEG_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x09) | |
1343 | #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b) | |
1344 | #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10) | |
1345 | #define INIT_HCA_UAR_OFFSET 0x120 | |
1346 | #define INIT_HCA_UAR_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x00) | |
1347 | #define INIT_HCA_UARC_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x09) | |
1348 | #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a) | |
1349 | #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b) | |
1350 | #define INIT_HCA_UAR_SCATCH_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x10) | |
1351 | #define INIT_HCA_UAR_CTX_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x18) | |
1352 | ||
ed878458 RD |
1353 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
1354 | if (IS_ERR(mailbox)) | |
1355 | return PTR_ERR(mailbox); | |
1356 | inbox = mailbox->buf; | |
1da177e4 LT |
1357 | |
1358 | memset(inbox, 0, INIT_HCA_IN_SIZE); | |
1359 | ||
651eaac9 EC |
1360 | if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT) |
1361 | MTHCA_PUT(inbox, 0x1, INIT_HCA_FLAGS1_OFFSET); | |
1362 | ||
1da177e4 | 1363 | #if defined(__LITTLE_ENDIAN) |
651eaac9 | 1364 | *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) &= ~cpu_to_be32(1 << 1); |
1da177e4 | 1365 | #elif defined(__BIG_ENDIAN) |
651eaac9 | 1366 | *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1 << 1); |
1da177e4 LT |
1367 | #else |
1368 | #error Host endianness not defined | |
1369 | #endif | |
1370 | /* Check port for UD address vector: */ | |
651eaac9 | 1371 | *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1); |
1da177e4 | 1372 | |
680b575f EC |
1373 | /* Enable IPoIB checksumming if we can: */ |
1374 | if (dev->device_cap_flags & IB_DEVICE_UD_IP_CSUM) | |
1375 | *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(7 << 3); | |
1376 | ||
1da177e4 LT |
1377 | /* We leave wqe_quota, responder_exu, etc as 0 (default) */ |
1378 | ||
1379 | /* QPC/EEC/CQC/EQC/RDB attributes */ | |
1380 | ||
1381 | MTHCA_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET); | |
1382 | MTHCA_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET); | |
1383 | MTHCA_PUT(inbox, param->eec_base, INIT_HCA_EEC_BASE_OFFSET); | |
1384 | MTHCA_PUT(inbox, param->log_num_eecs, INIT_HCA_LOG_EEC_OFFSET); | |
1385 | MTHCA_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET); | |
1386 | MTHCA_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET); | |
1387 | MTHCA_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET); | |
1388 | MTHCA_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET); | |
1389 | MTHCA_PUT(inbox, param->eqpc_base, INIT_HCA_EQPC_BASE_OFFSET); | |
1390 | MTHCA_PUT(inbox, param->eeec_base, INIT_HCA_EEEC_BASE_OFFSET); | |
1391 | MTHCA_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET); | |
1392 | MTHCA_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET); | |
1393 | MTHCA_PUT(inbox, param->rdb_base, INIT_HCA_RDB_BASE_OFFSET); | |
1394 | ||
1395 | /* UD AV attributes */ | |
1396 | ||
1397 | /* multicast attributes */ | |
1398 | ||
1399 | MTHCA_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET); | |
1400 | MTHCA_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET); | |
1401 | MTHCA_PUT(inbox, param->mc_hash_sz, INIT_HCA_MC_HASH_SZ_OFFSET); | |
1402 | MTHCA_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET); | |
1403 | ||
1404 | /* TPT attributes */ | |
1405 | ||
1406 | MTHCA_PUT(inbox, param->mpt_base, INIT_HCA_MPT_BASE_OFFSET); | |
d10ddbf6 | 1407 | if (!mthca_is_memfree(dev)) |
1da177e4 LT |
1408 | MTHCA_PUT(inbox, param->mtt_seg_sz, INIT_HCA_MTT_SEG_SZ_OFFSET); |
1409 | MTHCA_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET); | |
1410 | MTHCA_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET); | |
1411 | ||
1412 | /* UAR attributes */ | |
1413 | { | |
1414 | u8 uar_page_sz = PAGE_SHIFT - 12; | |
1415 | MTHCA_PUT(inbox, uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET); | |
1416 | } | |
1417 | ||
1418 | MTHCA_PUT(inbox, param->uar_scratch_base, INIT_HCA_UAR_SCATCH_BASE_OFFSET); | |
1419 | ||
d10ddbf6 | 1420 | if (mthca_is_memfree(dev)) { |
1da177e4 LT |
1421 | MTHCA_PUT(inbox, param->log_uarc_sz, INIT_HCA_UARC_SZ_OFFSET); |
1422 | MTHCA_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET); | |
1423 | MTHCA_PUT(inbox, param->uarc_base, INIT_HCA_UAR_CTX_BASE_OFFSET); | |
1424 | } | |
1425 | ||
cdb73db0 GR |
1426 | err = mthca_cmd(dev, mailbox->dma, 0, 0, |
1427 | CMD_INIT_HCA, CMD_TIME_CLASS_D); | |
1da177e4 | 1428 | |
ed878458 | 1429 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
1430 | return err; |
1431 | } | |
1432 | ||
1433 | int mthca_INIT_IB(struct mthca_dev *dev, | |
1434 | struct mthca_init_ib_param *param, | |
cdb73db0 | 1435 | int port) |
1da177e4 | 1436 | { |
ed878458 | 1437 | struct mthca_mailbox *mailbox; |
1da177e4 | 1438 | u32 *inbox; |
1da177e4 LT |
1439 | int err; |
1440 | u32 flags; | |
1441 | ||
1442 | #define INIT_IB_IN_SIZE 56 | |
1443 | #define INIT_IB_FLAGS_OFFSET 0x00 | |
1444 | #define INIT_IB_FLAG_SIG (1 << 18) | |
1445 | #define INIT_IB_FLAG_NG (1 << 17) | |
1446 | #define INIT_IB_FLAG_G0 (1 << 16) | |
1da177e4 | 1447 | #define INIT_IB_VL_SHIFT 4 |
da6561c2 | 1448 | #define INIT_IB_PORT_WIDTH_SHIFT 8 |
1da177e4 LT |
1449 | #define INIT_IB_MTU_SHIFT 12 |
1450 | #define INIT_IB_MAX_GID_OFFSET 0x06 | |
1451 | #define INIT_IB_MAX_PKEY_OFFSET 0x0a | |
1452 | #define INIT_IB_GUID0_OFFSET 0x10 | |
1453 | #define INIT_IB_NODE_GUID_OFFSET 0x18 | |
1454 | #define INIT_IB_SI_GUID_OFFSET 0x20 | |
1455 | ||
ed878458 RD |
1456 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
1457 | if (IS_ERR(mailbox)) | |
1458 | return PTR_ERR(mailbox); | |
1459 | inbox = mailbox->buf; | |
1da177e4 LT |
1460 | |
1461 | memset(inbox, 0, INIT_IB_IN_SIZE); | |
1462 | ||
1463 | flags = 0; | |
1da177e4 LT |
1464 | flags |= param->set_guid0 ? INIT_IB_FLAG_G0 : 0; |
1465 | flags |= param->set_node_guid ? INIT_IB_FLAG_NG : 0; | |
1466 | flags |= param->set_si_guid ? INIT_IB_FLAG_SIG : 0; | |
1467 | flags |= param->vl_cap << INIT_IB_VL_SHIFT; | |
da6561c2 | 1468 | flags |= param->port_width << INIT_IB_PORT_WIDTH_SHIFT; |
1da177e4 LT |
1469 | flags |= param->mtu_cap << INIT_IB_MTU_SHIFT; |
1470 | MTHCA_PUT(inbox, flags, INIT_IB_FLAGS_OFFSET); | |
1471 | ||
1472 | MTHCA_PUT(inbox, param->gid_cap, INIT_IB_MAX_GID_OFFSET); | |
1473 | MTHCA_PUT(inbox, param->pkey_cap, INIT_IB_MAX_PKEY_OFFSET); | |
1474 | MTHCA_PUT(inbox, param->guid0, INIT_IB_GUID0_OFFSET); | |
1475 | MTHCA_PUT(inbox, param->node_guid, INIT_IB_NODE_GUID_OFFSET); | |
1476 | MTHCA_PUT(inbox, param->si_guid, INIT_IB_SI_GUID_OFFSET); | |
1477 | ||
ed878458 | 1478 | err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_INIT_IB, |
cdb73db0 | 1479 | CMD_TIME_CLASS_A); |
1da177e4 | 1480 | |
ed878458 | 1481 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
1482 | return err; |
1483 | } | |
1484 | ||
cdb73db0 | 1485 | int mthca_CLOSE_IB(struct mthca_dev *dev, int port) |
1da177e4 | 1486 | { |
cdb73db0 | 1487 | return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, CMD_TIME_CLASS_A); |
1da177e4 LT |
1488 | } |
1489 | ||
cdb73db0 | 1490 | int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic) |
1da177e4 | 1491 | { |
cdb73db0 | 1492 | return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, CMD_TIME_CLASS_C); |
1da177e4 LT |
1493 | } |
1494 | ||
1495 | int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param, | |
cdb73db0 | 1496 | int port) |
1da177e4 | 1497 | { |
ed878458 | 1498 | struct mthca_mailbox *mailbox; |
1da177e4 | 1499 | u32 *inbox; |
1da177e4 LT |
1500 | int err; |
1501 | u32 flags = 0; | |
1502 | ||
1503 | #define SET_IB_IN_SIZE 0x40 | |
1504 | #define SET_IB_FLAGS_OFFSET 0x00 | |
1505 | #define SET_IB_FLAG_SIG (1 << 18) | |
1506 | #define SET_IB_FLAG_RQK (1 << 0) | |
1507 | #define SET_IB_CAP_MASK_OFFSET 0x04 | |
1508 | #define SET_IB_SI_GUID_OFFSET 0x08 | |
1509 | ||
ed878458 RD |
1510 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
1511 | if (IS_ERR(mailbox)) | |
1512 | return PTR_ERR(mailbox); | |
1513 | inbox = mailbox->buf; | |
1da177e4 LT |
1514 | |
1515 | memset(inbox, 0, SET_IB_IN_SIZE); | |
1516 | ||
1517 | flags |= param->set_si_guid ? SET_IB_FLAG_SIG : 0; | |
1518 | flags |= param->reset_qkey_viol ? SET_IB_FLAG_RQK : 0; | |
1519 | MTHCA_PUT(inbox, flags, SET_IB_FLAGS_OFFSET); | |
1520 | ||
1521 | MTHCA_PUT(inbox, param->cap_mask, SET_IB_CAP_MASK_OFFSET); | |
1522 | MTHCA_PUT(inbox, param->si_guid, SET_IB_SI_GUID_OFFSET); | |
1523 | ||
ed878458 | 1524 | err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_SET_IB, |
cdb73db0 | 1525 | CMD_TIME_CLASS_B); |
1da177e4 | 1526 | |
ed878458 | 1527 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
1528 | return err; |
1529 | } | |
1530 | ||
cdb73db0 | 1531 | int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt) |
1da177e4 | 1532 | { |
cdb73db0 | 1533 | return mthca_map_cmd(dev, CMD_MAP_ICM, icm, virt); |
1da177e4 LT |
1534 | } |
1535 | ||
cdb73db0 | 1536 | int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt) |
1da177e4 | 1537 | { |
ed878458 | 1538 | struct mthca_mailbox *mailbox; |
97f52eb4 | 1539 | __be64 *inbox; |
1da177e4 LT |
1540 | int err; |
1541 | ||
ed878458 RD |
1542 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
1543 | if (IS_ERR(mailbox)) | |
1544 | return PTR_ERR(mailbox); | |
1545 | inbox = mailbox->buf; | |
1da177e4 LT |
1546 | |
1547 | inbox[0] = cpu_to_be64(virt); | |
1548 | inbox[1] = cpu_to_be64(dma_addr); | |
1549 | ||
ed878458 | 1550 | err = mthca_cmd(dev, mailbox->dma, 1, 0, CMD_MAP_ICM, |
cdb73db0 | 1551 | CMD_TIME_CLASS_B); |
1da177e4 | 1552 | |
ed878458 | 1553 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
1554 | |
1555 | if (!err) | |
6bd6228e RD |
1556 | mthca_dbg(dev, "Mapped page at %llx to %llx for ICM.\n", |
1557 | (unsigned long long) dma_addr, (unsigned long long) virt); | |
1da177e4 LT |
1558 | |
1559 | return err; | |
1560 | } | |
1561 | ||
cdb73db0 | 1562 | int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count) |
1da177e4 LT |
1563 | { |
1564 | mthca_dbg(dev, "Unmapping %d pages at %llx from ICM.\n", | |
1565 | page_count, (unsigned long long) virt); | |
1566 | ||
cdb73db0 GR |
1567 | return mthca_cmd(dev, virt, page_count, 0, |
1568 | CMD_UNMAP_ICM, CMD_TIME_CLASS_B); | |
1da177e4 LT |
1569 | } |
1570 | ||
cdb73db0 | 1571 | int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm) |
1da177e4 | 1572 | { |
cdb73db0 | 1573 | return mthca_map_cmd(dev, CMD_MAP_ICM_AUX, icm, -1); |
1da177e4 LT |
1574 | } |
1575 | ||
cdb73db0 | 1576 | int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev) |
1da177e4 | 1577 | { |
cdb73db0 | 1578 | return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_ICM_AUX, CMD_TIME_CLASS_B); |
1da177e4 LT |
1579 | } |
1580 | ||
cdb73db0 | 1581 | int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages) |
1da177e4 | 1582 | { |
cdb73db0 GR |
1583 | int ret = mthca_cmd_imm(dev, icm_size, aux_pages, 0, |
1584 | 0, CMD_SET_ICM_SIZE, CMD_TIME_CLASS_A); | |
1da177e4 | 1585 | |
cdb73db0 | 1586 | if (ret) |
1da177e4 LT |
1587 | return ret; |
1588 | ||
1589 | /* | |
8d3ef29d IR |
1590 | * Round up number of system pages needed in case |
1591 | * MTHCA_ICM_PAGE_SIZE < PAGE_SIZE. | |
1da177e4 | 1592 | */ |
8d3ef29d IR |
1593 | *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >> |
1594 | (PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT); | |
1da177e4 LT |
1595 | |
1596 | return 0; | |
1597 | } | |
1598 | ||
ed878458 | 1599 | int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1600 | int mpt_index) |
1da177e4 | 1601 | { |
ed878458 | 1602 | return mthca_cmd(dev, mailbox->dma, mpt_index, 0, CMD_SW2HW_MPT, |
cdb73db0 | 1603 | CMD_TIME_CLASS_B); |
1da177e4 LT |
1604 | } |
1605 | ||
ed878458 | 1606 | int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1607 | int mpt_index) |
1da177e4 | 1608 | { |
ed878458 RD |
1609 | return mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index, |
1610 | !mailbox, CMD_HW2SW_MPT, | |
cdb73db0 | 1611 | CMD_TIME_CLASS_B); |
1da177e4 LT |
1612 | } |
1613 | ||
ed878458 | 1614 | int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1615 | int num_mtt) |
1da177e4 | 1616 | { |
ed878458 | 1617 | return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT, |
cdb73db0 | 1618 | CMD_TIME_CLASS_B); |
1da177e4 LT |
1619 | } |
1620 | ||
cdb73db0 | 1621 | int mthca_SYNC_TPT(struct mthca_dev *dev) |
b8ca06f6 | 1622 | { |
cdb73db0 | 1623 | return mthca_cmd(dev, 0, 0, 0, CMD_SYNC_TPT, CMD_TIME_CLASS_B); |
b8ca06f6 MT |
1624 | } |
1625 | ||
1da177e4 | 1626 | int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap, |
cdb73db0 | 1627 | int eq_num) |
1da177e4 LT |
1628 | { |
1629 | mthca_dbg(dev, "%s mask %016llx for eqn %d\n", | |
1630 | unmap ? "Clearing" : "Setting", | |
1631 | (unsigned long long) event_mask, eq_num); | |
1632 | return mthca_cmd(dev, event_mask, (unmap << 31) | eq_num, | |
cdb73db0 | 1633 | 0, CMD_MAP_EQ, CMD_TIME_CLASS_B); |
1da177e4 LT |
1634 | } |
1635 | ||
ed878458 | 1636 | int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1637 | int eq_num) |
1da177e4 | 1638 | { |
ed878458 | 1639 | return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ, |
cdb73db0 | 1640 | CMD_TIME_CLASS_A); |
1da177e4 LT |
1641 | } |
1642 | ||
ed878458 | 1643 | int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1644 | int eq_num) |
1da177e4 | 1645 | { |
ed878458 RD |
1646 | return mthca_cmd_box(dev, 0, mailbox->dma, eq_num, 0, |
1647 | CMD_HW2SW_EQ, | |
cdb73db0 | 1648 | CMD_TIME_CLASS_A); |
1da177e4 LT |
1649 | } |
1650 | ||
ed878458 | 1651 | int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1652 | int cq_num) |
1da177e4 | 1653 | { |
ed878458 | 1654 | return mthca_cmd(dev, mailbox->dma, cq_num, 0, CMD_SW2HW_CQ, |
cdb73db0 | 1655 | CMD_TIME_CLASS_A); |
1da177e4 LT |
1656 | } |
1657 | ||
ed878458 | 1658 | int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1659 | int cq_num) |
1da177e4 | 1660 | { |
ed878458 RD |
1661 | return mthca_cmd_box(dev, 0, mailbox->dma, cq_num, 0, |
1662 | CMD_HW2SW_CQ, | |
cdb73db0 | 1663 | CMD_TIME_CLASS_A); |
1da177e4 LT |
1664 | } |
1665 | ||
cdb73db0 | 1666 | int mthca_RESIZE_CQ(struct mthca_dev *dev, int cq_num, u32 lkey, u8 log_size) |
4885bf64 RD |
1667 | { |
1668 | struct mthca_mailbox *mailbox; | |
1669 | __be32 *inbox; | |
1670 | int err; | |
1671 | ||
1672 | #define RESIZE_CQ_IN_SIZE 0x40 | |
1673 | #define RESIZE_CQ_LOG_SIZE_OFFSET 0x0c | |
1674 | #define RESIZE_CQ_LKEY_OFFSET 0x1c | |
1675 | ||
1676 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); | |
1677 | if (IS_ERR(mailbox)) | |
1678 | return PTR_ERR(mailbox); | |
1679 | inbox = mailbox->buf; | |
1680 | ||
1681 | memset(inbox, 0, RESIZE_CQ_IN_SIZE); | |
1682 | /* | |
1683 | * Leave start address fields zeroed out -- mthca assumes that | |
1684 | * MRs for CQs always start at virtual address 0. | |
1685 | */ | |
1686 | MTHCA_PUT(inbox, log_size, RESIZE_CQ_LOG_SIZE_OFFSET); | |
1687 | MTHCA_PUT(inbox, lkey, RESIZE_CQ_LKEY_OFFSET); | |
1688 | ||
1689 | err = mthca_cmd(dev, mailbox->dma, cq_num, 1, CMD_RESIZE_CQ, | |
cdb73db0 | 1690 | CMD_TIME_CLASS_B); |
4885bf64 RD |
1691 | |
1692 | mthca_free_mailbox(dev, mailbox); | |
1693 | return err; | |
1694 | } | |
1695 | ||
ec34a922 | 1696 | int mthca_SW2HW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1697 | int srq_num) |
ec34a922 RD |
1698 | { |
1699 | return mthca_cmd(dev, mailbox->dma, srq_num, 0, CMD_SW2HW_SRQ, | |
cdb73db0 | 1700 | CMD_TIME_CLASS_A); |
ec34a922 RD |
1701 | } |
1702 | ||
1703 | int mthca_HW2SW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, | |
cdb73db0 | 1704 | int srq_num) |
ec34a922 RD |
1705 | { |
1706 | return mthca_cmd_box(dev, 0, mailbox->dma, srq_num, 0, | |
1707 | CMD_HW2SW_SRQ, | |
cdb73db0 | 1708 | CMD_TIME_CLASS_A); |
ec34a922 RD |
1709 | } |
1710 | ||
8ebe5077 | 1711 | int mthca_QUERY_SRQ(struct mthca_dev *dev, u32 num, |
cdb73db0 | 1712 | struct mthca_mailbox *mailbox) |
8ebe5077 EC |
1713 | { |
1714 | return mthca_cmd_box(dev, 0, mailbox->dma, num, 0, | |
cdb73db0 | 1715 | CMD_QUERY_SRQ, CMD_TIME_CLASS_A); |
8ebe5077 EC |
1716 | } |
1717 | ||
cdb73db0 | 1718 | int mthca_ARM_SRQ(struct mthca_dev *dev, int srq_num, int limit) |
ec34a922 RD |
1719 | { |
1720 | return mthca_cmd(dev, limit, srq_num, 0, CMD_ARM_SRQ, | |
cdb73db0 | 1721 | CMD_TIME_CLASS_B); |
ec34a922 RD |
1722 | } |
1723 | ||
d844183d RD |
1724 | int mthca_MODIFY_QP(struct mthca_dev *dev, enum ib_qp_state cur, |
1725 | enum ib_qp_state next, u32 num, int is_ee, | |
cdb73db0 | 1726 | struct mthca_mailbox *mailbox, u32 optmask) |
1da177e4 | 1727 | { |
d844183d RD |
1728 | static const u16 op[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = { |
1729 | [IB_QPS_RESET] = { | |
1730 | [IB_QPS_RESET] = CMD_ERR2RST_QPEE, | |
1731 | [IB_QPS_ERR] = CMD_2ERR_QPEE, | |
1732 | [IB_QPS_INIT] = CMD_RST2INIT_QPEE, | |
1733 | }, | |
1734 | [IB_QPS_INIT] = { | |
1735 | [IB_QPS_RESET] = CMD_ERR2RST_QPEE, | |
1736 | [IB_QPS_ERR] = CMD_2ERR_QPEE, | |
1737 | [IB_QPS_INIT] = CMD_INIT2INIT_QPEE, | |
1738 | [IB_QPS_RTR] = CMD_INIT2RTR_QPEE, | |
1739 | }, | |
1740 | [IB_QPS_RTR] = { | |
1741 | [IB_QPS_RESET] = CMD_ERR2RST_QPEE, | |
1742 | [IB_QPS_ERR] = CMD_2ERR_QPEE, | |
1743 | [IB_QPS_RTS] = CMD_RTR2RTS_QPEE, | |
1744 | }, | |
1745 | [IB_QPS_RTS] = { | |
1746 | [IB_QPS_RESET] = CMD_ERR2RST_QPEE, | |
1747 | [IB_QPS_ERR] = CMD_2ERR_QPEE, | |
1748 | [IB_QPS_RTS] = CMD_RTS2RTS_QPEE, | |
1749 | [IB_QPS_SQD] = CMD_RTS2SQD_QPEE, | |
1750 | }, | |
1751 | [IB_QPS_SQD] = { | |
1752 | [IB_QPS_RESET] = CMD_ERR2RST_QPEE, | |
1753 | [IB_QPS_ERR] = CMD_2ERR_QPEE, | |
1754 | [IB_QPS_RTS] = CMD_SQD2RTS_QPEE, | |
1755 | [IB_QPS_SQD] = CMD_SQD2SQD_QPEE, | |
1756 | }, | |
1757 | [IB_QPS_SQE] = { | |
1758 | [IB_QPS_RESET] = CMD_ERR2RST_QPEE, | |
1759 | [IB_QPS_ERR] = CMD_2ERR_QPEE, | |
1760 | [IB_QPS_RTS] = CMD_SQERR2RTS_QPEE, | |
1761 | }, | |
1762 | [IB_QPS_ERR] = { | |
1763 | [IB_QPS_RESET] = CMD_ERR2RST_QPEE, | |
1764 | [IB_QPS_ERR] = CMD_2ERR_QPEE, | |
1765 | } | |
1da177e4 | 1766 | }; |
d844183d | 1767 | |
1da177e4 | 1768 | u8 op_mod = 0; |
ed878458 | 1769 | int my_mailbox = 0; |
1da177e4 LT |
1770 | int err; |
1771 | ||
d844183d | 1772 | if (op[cur][next] == CMD_ERR2RST_QPEE) { |
1da177e4 LT |
1773 | op_mod = 3; /* don't write outbox, any->reset */ |
1774 | ||
1775 | /* For debugging */ | |
ed878458 RD |
1776 | if (!mailbox) { |
1777 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); | |
1778 | if (!IS_ERR(mailbox)) { | |
1779 | my_mailbox = 1; | |
1780 | op_mod = 2; /* write outbox, any->reset */ | |
1781 | } else | |
1782 | mailbox = NULL; | |
1783 | } | |
d844183d RD |
1784 | |
1785 | err = mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, | |
1786 | (!!is_ee << 24) | num, op_mod, | |
cdb73db0 | 1787 | op[cur][next], CMD_TIME_CLASS_C); |
d844183d RD |
1788 | |
1789 | if (0 && mailbox) { | |
1da177e4 LT |
1790 | int i; |
1791 | mthca_dbg(dev, "Dumping QP context:\n"); | |
d844183d | 1792 | printk(" %08x\n", be32_to_cpup(mailbox->buf)); |
1da177e4 LT |
1793 | for (i = 0; i < 0x100 / 4; ++i) { |
1794 | if (i % 8 == 0) | |
d844183d | 1795 | printk("[%02x] ", i * 4); |
ed878458 | 1796 | printk(" %08x", |
97f52eb4 | 1797 | be32_to_cpu(((__be32 *) mailbox->buf)[i + 2])); |
1da177e4 LT |
1798 | if ((i + 1) % 8 == 0) |
1799 | printk("\n"); | |
1800 | } | |
1801 | } | |
1da177e4 | 1802 | |
d844183d RD |
1803 | if (my_mailbox) |
1804 | mthca_free_mailbox(dev, mailbox); | |
1805 | } else { | |
1806 | if (0) { | |
1da177e4 LT |
1807 | int i; |
1808 | mthca_dbg(dev, "Dumping QP context:\n"); | |
d844183d | 1809 | printk(" opt param mask: %08x\n", be32_to_cpup(mailbox->buf)); |
1da177e4 LT |
1810 | for (i = 0; i < 0x100 / 4; ++i) { |
1811 | if (i % 8 == 0) | |
d844183d | 1812 | printk(" [%02x] ", i * 4); |
ed878458 | 1813 | printk(" %08x", |
97f52eb4 | 1814 | be32_to_cpu(((__be32 *) mailbox->buf)[i + 2])); |
1da177e4 LT |
1815 | if ((i + 1) % 8 == 0) |
1816 | printk("\n"); | |
1817 | } | |
1818 | } | |
1819 | ||
d844183d | 1820 | err = mthca_cmd(dev, mailbox->dma, optmask | (!!is_ee << 24) | num, |
cdb73db0 | 1821 | op_mod, op[cur][next], CMD_TIME_CLASS_C); |
d844183d | 1822 | } |
ed878458 | 1823 | |
1da177e4 LT |
1824 | return err; |
1825 | } | |
1826 | ||
1827 | int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee, | |
cdb73db0 | 1828 | struct mthca_mailbox *mailbox) |
1da177e4 | 1829 | { |
ed878458 | 1830 | return mthca_cmd_box(dev, 0, mailbox->dma, (!!is_ee << 24) | num, 0, |
cdb73db0 | 1831 | CMD_QUERY_QPEE, CMD_TIME_CLASS_A); |
1da177e4 LT |
1832 | } |
1833 | ||
cdb73db0 | 1834 | int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn) |
1da177e4 LT |
1835 | { |
1836 | u8 op_mod; | |
1837 | ||
1838 | switch (type) { | |
1839 | case IB_QPT_SMI: | |
1840 | op_mod = 0; | |
1841 | break; | |
1842 | case IB_QPT_GSI: | |
1843 | op_mod = 1; | |
1844 | break; | |
1845 | case IB_QPT_RAW_IPV6: | |
1846 | op_mod = 2; | |
1847 | break; | |
a2ebf07a | 1848 | case IB_QPT_RAW_ETHERTYPE: |
1da177e4 LT |
1849 | op_mod = 3; |
1850 | break; | |
1851 | default: | |
1852 | return -EINVAL; | |
1853 | } | |
1854 | ||
1855 | return mthca_cmd(dev, 0, qpn, op_mod, CMD_CONF_SPECIAL_QP, | |
cdb73db0 | 1856 | CMD_TIME_CLASS_B); |
1da177e4 LT |
1857 | } |
1858 | ||
1859 | int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, | |
ed878458 | 1860 | int port, struct ib_wc *in_wc, struct ib_grh *in_grh, |
cdb73db0 | 1861 | void *in_mad, void *response_mad) |
1da177e4 | 1862 | { |
ed878458 RD |
1863 | struct mthca_mailbox *inmailbox, *outmailbox; |
1864 | void *inbox; | |
1da177e4 LT |
1865 | int err; |
1866 | u32 in_modifier = port; | |
1867 | u8 op_modifier = 0; | |
1868 | ||
1869 | #define MAD_IFC_BOX_SIZE 0x400 | |
1870 | #define MAD_IFC_MY_QPN_OFFSET 0x100 | |
68586b67 MT |
1871 | #define MAD_IFC_RQPN_OFFSET 0x108 |
1872 | #define MAD_IFC_SL_OFFSET 0x10c | |
1873 | #define MAD_IFC_G_PATH_OFFSET 0x10d | |
1874 | #define MAD_IFC_RLID_OFFSET 0x10e | |
1875 | #define MAD_IFC_PKEY_OFFSET 0x112 | |
1da177e4 LT |
1876 | #define MAD_IFC_GRH_OFFSET 0x140 |
1877 | ||
ed878458 RD |
1878 | inmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
1879 | if (IS_ERR(inmailbox)) | |
1880 | return PTR_ERR(inmailbox); | |
1881 | inbox = inmailbox->buf; | |
1882 | ||
1883 | outmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); | |
1884 | if (IS_ERR(outmailbox)) { | |
1885 | mthca_free_mailbox(dev, inmailbox); | |
1886 | return PTR_ERR(outmailbox); | |
1887 | } | |
1da177e4 | 1888 | |
ed878458 | 1889 | memcpy(inbox, in_mad, 256); |
1da177e4 LT |
1890 | |
1891 | /* | |
1892 | * Key check traps can't be generated unless we have in_wc to | |
1893 | * tell us where to send the trap. | |
1894 | */ | |
1895 | if (ignore_mkey || !in_wc) | |
1896 | op_modifier |= 0x1; | |
1897 | if (ignore_bkey || !in_wc) | |
1898 | op_modifier |= 0x2; | |
1899 | ||
1900 | if (in_wc) { | |
1901 | u8 val; | |
1902 | ||
ed878458 | 1903 | memset(inbox + 256, 0, 256); |
1da177e4 | 1904 | |
062dbb69 | 1905 | MTHCA_PUT(inbox, in_wc->qp->qp_num, MAD_IFC_MY_QPN_OFFSET); |
ed878458 | 1906 | MTHCA_PUT(inbox, in_wc->src_qp, MAD_IFC_RQPN_OFFSET); |
1da177e4 LT |
1907 | |
1908 | val = in_wc->sl << 4; | |
ed878458 | 1909 | MTHCA_PUT(inbox, val, MAD_IFC_SL_OFFSET); |
1da177e4 LT |
1910 | |
1911 | val = in_wc->dlid_path_bits | | |
1912 | (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0); | |
68586b67 | 1913 | MTHCA_PUT(inbox, val, MAD_IFC_G_PATH_OFFSET); |
1da177e4 | 1914 | |
ed878458 RD |
1915 | MTHCA_PUT(inbox, in_wc->slid, MAD_IFC_RLID_OFFSET); |
1916 | MTHCA_PUT(inbox, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET); | |
1da177e4 LT |
1917 | |
1918 | if (in_grh) | |
ed878458 | 1919 | memcpy(inbox + MAD_IFC_GRH_OFFSET, in_grh, 40); |
1da177e4 | 1920 | |
68586b67 | 1921 | op_modifier |= 0x4; |
1da177e4 LT |
1922 | |
1923 | in_modifier |= in_wc->slid << 16; | |
1924 | } | |
1925 | ||
ed878458 RD |
1926 | err = mthca_cmd_box(dev, inmailbox->dma, outmailbox->dma, |
1927 | in_modifier, op_modifier, | |
cdb73db0 | 1928 | CMD_MAD_IFC, CMD_TIME_CLASS_C); |
1da177e4 | 1929 | |
cdb73db0 | 1930 | if (!err) |
ed878458 | 1931 | memcpy(response_mad, outmailbox->buf, 256); |
1da177e4 | 1932 | |
ed878458 RD |
1933 | mthca_free_mailbox(dev, inmailbox); |
1934 | mthca_free_mailbox(dev, outmailbox); | |
1da177e4 LT |
1935 | return err; |
1936 | } | |
1937 | ||
ed878458 | 1938 | int mthca_READ_MGM(struct mthca_dev *dev, int index, |
cdb73db0 | 1939 | struct mthca_mailbox *mailbox) |
1da177e4 | 1940 | { |
ed878458 | 1941 | return mthca_cmd_box(dev, 0, mailbox->dma, index, 0, |
cdb73db0 | 1942 | CMD_READ_MGM, CMD_TIME_CLASS_A); |
1da177e4 LT |
1943 | } |
1944 | ||
ed878458 | 1945 | int mthca_WRITE_MGM(struct mthca_dev *dev, int index, |
cdb73db0 | 1946 | struct mthca_mailbox *mailbox) |
1da177e4 | 1947 | { |
ed878458 | 1948 | return mthca_cmd(dev, mailbox->dma, index, 0, CMD_WRITE_MGM, |
cdb73db0 | 1949 | CMD_TIME_CLASS_A); |
1da177e4 LT |
1950 | } |
1951 | ||
ed878458 | 1952 | int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox, |
cdb73db0 | 1953 | u16 *hash) |
1da177e4 | 1954 | { |
1da177e4 LT |
1955 | u64 imm; |
1956 | int err; | |
1957 | ||
ed878458 | 1958 | err = mthca_cmd_imm(dev, mailbox->dma, &imm, 0, 0, CMD_MGID_HASH, |
cdb73db0 | 1959 | CMD_TIME_CLASS_A); |
1da177e4 | 1960 | |
ed878458 | 1961 | *hash = imm; |
1da177e4 LT |
1962 | return err; |
1963 | } | |
1964 | ||
cdb73db0 | 1965 | int mthca_NOP(struct mthca_dev *dev) |
1da177e4 | 1966 | { |
cdb73db0 | 1967 | return mthca_cmd(dev, 0, 0x1f, 0, CMD_NOP, msecs_to_jiffies(100)); |
1da177e4 | 1968 | } |